The WBCDB3-1822.5-1841-1844-1862.5-30 from Wainwright Instruments is a Band Pass Filter with Frequency 1.841 to 1.844 GHz, Bandwidth 3 MHz, Center Frequency 1.8425 GHz, Insertion Loss 1.25 to 1.5 dB, Rejection 30 dB. Tags: Module with Connectors, Cavity Filter. More details for WBCDB3-1822.5-1841-1844-1862.5-30 can be seen below.